do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, seek immediate medical help for an erection lasting more than 4 hours. if you have any sudden decrease or loss in hearing or vision, or if you have any allergic reactions such as rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a 30-tablet free trial. >>> we'll be back with rush limbaugh's attack on pope francis of all people. "hardball" back after this. [ male announcer ] here's a question for you. if every u.s. home replaced one light bulb with a compact fluorescent bulb, the energy saved could light how many homes? 1 million? 2 million? 3 million? the answer is... 3 million homes. by 2030, investments in energy efficiency could help americans save $300 billion each year. take the energy quiz. energy lives here. with my united mileagep